TITANIUM-CONTAINING ACTIVE MATERIAL FOR NEGATIVE ELECTRODES AND ITS PRODUCTION METHOD AND TITANIUM-CONTAINING POWER LITHIUM BATTERY

摘要

A titanium-containing active material for negative electrodes and its production method, and a titanium-containing power lithium battery. The titanium-containing active material for negative electrodes has a general formula of Li4Ti5O12/Mx, wherein Li4Ti5O12 is spinel lithium titanate, M is a doping substance selected from a metal element, metal compound, non-metal substance or non-metal compound, and 04Ti5O12 or combines with Li4Ti5O12. The production method for the titanium-containing active material includes the following steps: a mixture of a composite lithium titanate precursor is produced and heat treated after spray drying. The titanium-containing power lithium battery uses Li4Ti5O12/Mx as an active material for negative electrodes.